Home / 212,872,021.20-319,308,031.80-166,955,518.80

Finding the Fourth Proportional to 212,872,021.20, 319,308,031.80 and 166,955,518.80

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Solution

The fourth proportional to 212,872,021.20, 319,308,031.80 and 166,955,518.80 is: 250,433,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,872,021.20 : 319,308,031.80 = 166,955,518.80 : x
  2. Step 2: Convert to fraction form
    212,872,021.20/319,308,031.80 = 166,955,518.80/x
  3. Step 3: Cross multiply
    212,872,021.20x = 319,308,031.80 × 166,955,518.80
  4. Step 4: Simplify right side
    212,872,021.20x = 53,310,238,106,175,904
  5. Step 5: Solve for x
    x = 53,310,238,106,175,904/212,872,021.20
  6. Step 6: Final answer
    x = 250,433,278.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.